Vehicle-mounted ultrahigh-power electric fire-fighting fan system and control method thereof

Abstract

The invention discloses a vehicle-mounted ultrahigh-power electric fire-fighting fan system and a control method thereof, and belongs to the technical field of fire-fighting equipment. The system comprises a new energy electric vehicle body, a motor fixing bracket, a fire-fighting fan motor, a fire-fighting fan motor controller, a new energy electric vehicle power battery, an electronic change-over switch, a new energy electric vehicle driving motor controller, a new energy electric vehicle driving motor and a new energy electric vehicle whole vehicle controller. The new energy electric vehicle is combined with the fire-fighting fan, the power battery of the electric vehicle is used for supplying power to the fire-fighting fan, and the fire-fighting fan which is flexible and ultrahigh in power and is provided with the power source is achieved. According to the control method, switching between the electric vehicle mode and the electric fire-fighting fan mode is achieved through the electronic change-over switch. The system overcomes the defect that the use radius of a traditional fire-fighting fan is limited, the power and use flexibility of the fire-fighting fan are improved, and the system has important practical value.

Description

Technical Field

[0001] The present invention belongs to the technical field of fire fighting equipment, and in particular relates to a vehicle-mounted ultra-high power electric fire fighting fan system and a control method thereof. Background Art

[0002] Fire fans are important equipment in firefighting work, mainly used for smoke exhaust and air supply at the fire scene. Traditional fire fans are usually portable to improve their mobility. For example, Chinese patent document CN206468564U discloses a fire fan that is easy to move and has the characteristics of good portability.

[0003] However, there are still some problems and disadvantages in the fire fighting fans in the prior art:

[0004] 1. The fire fan itself has no power supply or is equipped with a small capacity power supply, which strictly limits the scope of use of the fire fan. In some fire scenes far away from the power supply, the fire fan may not be able to be used normally.

[0005] 2. The power of traditional fire-fighting fans is relatively limited and may not be effective at some large-scale fire scenes.

[0006] 3. Although portable fire fans improve mobility, they are still not convenient enough for long-distance transfer.

[0007] Therefore, there is an urgent need for a new fire-fighting fan system that can overcome the above-mentioned shortcomings. Summary of the invention

[0008] The purpose of the present invention is to provide a vehicle-mounted ultra-high power electric fire-fighting fan system and a control method thereof, so as to solve the technical problems of limited use radius, insufficient power and insufficient mobility of fire-fighting fans in the prior art.

[0009] To achieve the above objectives, in a first aspect, the vehicle-mounted ultra-high power electric fire-fighting fan system designed by the present invention comprises:

[0010] A new energy electric vehicle, comprising a vehicle body, a power battery, a drive motor controller and a drive motor;

[0011] Power battery, used to power the entire system;

[0012] A motor fixing bracket is mounted on the vehicle body;

[0013] A fire-fighting fan motor is mounted on the motor fixing bracket;

[0014] A fire-fighting fan motor controller, electrically connected to the fire-fighting fan motor;

[0015] The fan blades are mounted on the motor shaft of the fire-fighting fan motor;

[0016] an electronic transfer switch having a positive terminal, a first negative terminal, and a second negative terminal;

[0017] Among them, the positive terminal of the power battery is electrically connected to the positive terminal of the electronic conversion switch, the first negative terminal of the electronic conversion switch is electrically connected to the positive terminal of the fire fan motor controller, and the negative terminal of the fire fan motor controller is electrically connected to the negative terminal of the power battery; the second negative terminal of the electronic conversion switch is electrically connected to the positive terminal of the drive motor controller, and the negative terminal of the drive motor controller is electrically connected to the negative terminal of the power battery.

[0018] In some embodiments of the present invention, the system further includes a vehicle controller, which is communicatively connected to the electronic conversion switch, the fire-fighting fan motor controller, and a battery management system of the power battery.

[0019] In some embodiments of the present invention, the electronic switching switch can send its own conduction state information to the vehicle controller, and can receive and execute switch conversion instructions from the vehicle controller.

[0020] In some embodiments of the present invention, the new energy vehicle is a vehicle that is supplemented with electric energy from the outside and uses a high-voltage power battery as an energy source and a high-speed motor as a drive.

[0021] In some embodiments of the present invention, the new energy electric vehicle is one of the following models: a sedan, a station wagon, a multi-purpose passenger vehicle, an off-road passenger vehicle, a pickup truck or a light truck.

[0022] In some embodiments of the present invention, the fire-fighting fan motor controller matches the voltage range and output power range of the power battery.

[0023] In some embodiments of the present invention, the electronic switch is a single-pole double-throw type.

[0024] In a second aspect, the control method of the vehicle-mounted ultra-high power electric fire-fighting fan system designed by the present invention comprises:

[0025] A control method for a vehicle-mounted ultra-high power electric fire-fighting fan system, characterized in that it comprises the following steps:

[0026] Receive mode switching instructions;

[0027] According to the mode switching instruction, the electronic conversion switch is controlled to switch the conduction state so as to switch between the electric vehicle mode and the electric fire fighting fan mode;

[0028] When switching to the electric fire-fighting fan mode, the electronic conversion switch is controlled to conduct the first negative terminal so that the power battery is electrically connected to the fire-fighting fan motor controller;

[0029] When switching to the electric vehicle mode, the electronic conversion switch is controlled to turn on the second negative terminal, so that the power battery is electrically connected to the drive motor controller.

[0030] In some embodiments of the present invention, in the electric fire-fighting fan mode, the power state of the power battery is monitored;

[0031] When it is detected that the power battery power is lower than the preset threshold, a warning signal is issued.

[0032] In some embodiments of the present invention, in the electric fire-fighting fan mode, the rotation speed of the fire-fighting fan motor is controlled to adjust the output power of the fire-fighting fan.

[0033] In some embodiments of the present invention, in the electric vehicle mode, starting of the fire-fighting fan motor is prohibited.

[0034] In some embodiments of the present invention, during the mode switching process, it is ensured that the power battery, the drive motor controller and the fire fan motor controller are not turned on at the same time to prevent a short circuit.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] The present invention is based on the design innovation of existing new energy electric vehicles, and on this basis, a set of motors, motor controllers and large-sized fan blades are added as fire-fighting fans. The fire-fighting fan can use the power battery of the electric vehicle as the energy source, which can ensure that it is not restricted by location and environment and can work for a long time; at the same time, the drive motor is used as the motor of the fire-fighting fan, which can ensure that the fire-fighting fan has ultra-high power output and has better effect when extinguishing fires; finally, the fire-fighting fan is vehicle-mounted and can be seamlessly switched between the electric vehicle and the fire-fighting fan, ensuring mobility when extinguishing fires.

[0037] The present invention combines the existing new energy electric vehicle with a fire-fighting fan, making full use of the existing high-voltage components such as the power battery, motor controller and the portability of the new energy electric vehicle itself. At the same time, the fire-fighting fan of the present invention is flexible, has ultra-high power and comes with its own power supply.

[0038] 1. The present invention innovatively combines new energy electric vehicles with fire-fighting fans, making full use of the power batteries, motor controllers and other high-voltage components of new energy electric vehicles and the portability of the entire vehicle, and designs a mobile, ultra-high-power, self-powered fire-fighting fan system.

[0039] 2. The fire-fighting fan system of the present invention can use the power battery of an electric vehicle as an energy source, which can ensure that it is not restricted by location and environment and can work for a long time, greatly expanding the scope of use of the fire-fighting fan.

[0040] 3. The present invention uses a driving motor as the motor of the fire-fighting fan, which can ensure that the fire-fighting fan has an ultra-high power output and has a better effect when extinguishing a fire.

[0041] 4. The fire-fighting fan system of the present invention is vehicle-mounted and can be seamlessly switched between an electric vehicle and a fire-fighting fan, thereby ensuring maneuverability during fire-fighting and greatly improving the efficiency of fire-fighting work.

[0042] 5. The control method of the present invention realizes flexible switching between the electric vehicle mode and the electric fire-fighting fan mode through an electronic conversion switch, and is simple to operate and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments disclosed in the present invention, the drawings of the embodiments will be briefly introduced below. These drawings are only used for illustrative purposes and are not intended to limit the protection scope of the present invention.

[0044] Figure 1 It is a schematic diagram of the arrangement of the main part of the fire-fighting fan of a vehicle-mounted ultra-high power electric fire-fighting fan system on a vehicle according to an embodiment of the present invention;

[0045] Figure 2 yes Figure 1 A schematic diagram of circuit connection of an embodiment;

[0046] Figure 3 yes Figure 1 A schematic diagram of communication connection of an embodiment;

[0047] Figure 4 It is a schematic diagram of switching between different modes and working logic of a control method for a vehicle-mounted ultra-high power electric fire-fighting blower system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The technical solution of the present invention (including the preferred technical solution) is further described in detail below by means of the accompanying drawings and by listing some optional embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Example 1

[0050] like Figures 1 to 3As shown, this embodiment provides a vehicle-mounted ultra-high power electric fire-fighting blower system, which includes: a new energy electric vehicle body 1, a motor fixing bracket 2, a fire-fighting blower motor 3, a fire-fighting blower motor controller 4, a new energy electric vehicle power battery 5, an electronic conversion switch 6, a new energy electric vehicle drive motor controller 7, a new energy electric vehicle drive motor 8 and a new energy electric vehicle whole vehicle controller 9.

[0051] A motor fixing bracket 2 is installed on the body 1 of the new energy electric vehicle. In this embodiment, the new energy electric vehicle is a vehicle that can be supplemented with electric energy from the outside and uses a high-voltage power battery as an energy source and a high-speed motor as a drive. The new energy electric vehicle can be in the form of a sedan, a station wagon, a multi-purpose passenger car, an off-road passenger car, a pickup truck or a light truck, etc. This embodiment is described by taking a pickup truck as an example.

[0052] The fire-fighting fan motor 3 is mounted on the motor fixing bracket 2, and a fan blade 32 is mounted on the motor shaft 31 of the fire-fighting fan motor 3. The fire-fighting fan motor controller 4 is electrically connected to the fire-fighting fan motor 3 and is used to control the operation of the fire-fighting fan motor 3. In this embodiment, the fire-fighting fan motor 3 and the fire-fighting fan motor controller 4 are both products of the same model as the new energy electric vehicle drive motor 8 and the drive motor controller 7, so that the existing components of the new energy electric vehicle can be fully utilized, the cost can be reduced, and the compatibility of the system can be improved.

[0053] The new energy electric vehicle power battery 5 is used to power the entire system. The positive terminal 51 of the power battery 5 is connected to the positive terminal 61 of the electronic conversion switch 6 through a high-voltage wiring harness. In this embodiment, the electronic conversion switch 6 is a single-pole double-throw type. The first negative terminal 62 of the electronic conversion switch 6 is connected to the positive terminal 41 of the fire fan motor controller 4 through a high-voltage wiring harness, and the second negative terminal 63 of the electronic conversion switch 6 is connected to the positive terminal 71 of the new energy electric vehicle drive motor controller 7 through a high-voltage wiring harness.

[0054] The negative terminal 42 of the fire-fighting fan motor controller 4 and the negative terminal 72 of the new energy electric vehicle drive motor controller 7 are both connected to the negative terminal 52 of the power battery 5 through a high-voltage wire harness. The fire-fighting fan motor controller 4 is connected to the fire-fighting fan motor 3 through a three-phase high-voltage wire harness, and the new energy electric vehicle drive motor controller 7 is connected to the new energy electric vehicle drive motor 8 through a three-phase high-voltage wire harness.

[0055] The new energy electric vehicle controller 9 is connected to the electronic switch 6, the fire fan motor controller 4 and the battery management system 53 of the new energy electric vehicle power battery 5. The electronic switch 6 can communicate with the vehicle controller 9, can inform the vehicle controller 9 of its own conduction state, and can accept and execute the switch conversion command from the vehicle controller 9. At the same time, the fire fan motor controller 4 can also communicate with the vehicle controller 9 and the power battery management system 53.

[0056] Example 2

[0057] Based on Example 1, this example describes in detail the control method of the system. Figure 4 As shown in the figure, when it is necessary to switch from electric vehicle mode to electric fire fan mode, the control logic is as follows:

[0058] 1. The system receives a mode switching instruction. The instruction can come from the driver's operation, such as pressing a specially set mode switching button, or selecting a mode through the vehicle's touch screen.

[0059] 2. After receiving the mode switching instruction, the vehicle controller 9 first checks whether the vehicle is stationary. If the vehicle is moving, the system will refuse to execute the mode switching and send a warning message to the driver.

[0060] 3. If the vehicle is stationary, the vehicle controller 9 will send a switching instruction to the electronic switch 6.

[0061] 4. After receiving the instruction, the electronic conversion switch 6 first disconnects from the drive motor controller 7 (the second negative terminal 63 is disconnected).

[0062] 5. After a preset safety time interval (eg, 100 milliseconds), the electronic switch 6 closes the connection with the fire-fighting fan motor controller 4 (the first negative terminal 62 is turned on).

[0063] 6. The electronic switch 6 feeds back its current conduction state to the vehicle controller 9.

[0064] 7. The vehicle controller 9 confirms that the mode switch is successful and notifies the fire fan motor controller 4 that it can start working.

[0065] 8. The fire fan motor controller 4 starts the fire fan motor 3, and the system enters the electric fire fan mode.

[0066] In the electric fire fan mode, the system also performs the following controls:

[0067] 1. The vehicle controller 9 continuously monitors the power status of the power battery 5. When it is detected that the power level of the power battery is lower than a preset threshold (for example, 20%), a warning signal is sent to the driver to remind him to charge or replace the battery in time.

[0068] 2. The fire fan motor controller 4 controls the speed of the fire fan motor 3 as required to adjust the output power of the fire fan. The driver can adjust the output power of the fan through a specially set control panel or touch screen.

[0069] 3. In this mode, the system prohibits the start of the drive motor 8 to ensure safe operation.

[0070] When it is necessary to switch from the electric fire fan mode back to the electric vehicle mode, the control logic is as follows:

[0071] 1. The system receives a mode switch command.

[0072] 2. The vehicle controller 9 sends a stop command to the fire fan motor controller 4.

[0073] 3. The fire-fighting fan motor controller 4 stops the operation of the fire-fighting fan motor 3.

[0074] 4. The vehicle controller 9 sends a switching instruction to the electronic conversion switch 6.

[0075] 5. The electronic switching switch 6 first disconnects from the fire-fighting fan motor controller 4 (the first negative terminal 62 is disconnected).

[0076] 6. After the safety time interval, the electronic switch 6 closes the connection with the drive motor controller 7 (the second negative terminal 63 is turned on).

[0077] 7. The electronic switch 6 feeds back its current conduction state to the vehicle controller 9.

[0078] 8. The vehicle controller 9 confirms that the mode switch is successful and the system returns to normal electric vehicle mode.

[0079] Example 3

[0080] This embodiment provides a control method for the above-mentioned vehicle-mounted ultra-high power electric fire-fighting fan system, comprising the following steps:

[0081] S1, the system starts, and the new energy electric vehicle controller 9 detects the state of the electronic conversion switch 6;

[0082] S2, if the electronic conversion switch 6 turns on the new energy electric vehicle drive motor controller 7, the system enters the electric vehicle mode;

[0083] S3, if the electronic switch 6 turns on the fire fan motor controller 4, the system enters the electric fire fan mode;

[0084] S4, in the electric vehicle mode, if a switching command is detected, the electronic conversion switch 6 is controlled to switch to the fire fan motor controller 4, and the system enters the electric fire fan mode;

[0085] S5, in the electric fire-fighting fan mode, if a switching instruction is detected, the electronic conversion switch 6 is controlled to switch to the new energy electric vehicle drive motor controller 7, and the system enters the electric vehicle mode.

[0086] In this embodiment, the switching instruction may be an instruction issued by the user through an operation interface. For example, a special switching button or switch may be provided on the vehicle dashboard, and the user may issue the switching instruction by operating the button or switch.

[0087] In addition, in the electric fire-fighting fan mode, the new energy electric vehicle controller 9 can also adjust the output power of the fire-fighting fan motor controller 4 according to the battery status information fed back by the power battery management system 53. In this way, the working efficiency of the fire-fighting fan can be optimized and the use time can be extended according to the remaining power and working status of the battery.

[0088] The vehicle-mounted ultra-high power electric fire-fighting blower system of this embodiment, by combining a new energy electric vehicle with a fire-fighting blower, makes full use of the power battery, motor controller and other high-voltage components of the new energy electric vehicle itself and the portability of the whole vehicle, and designs a flexible, ultra-high power, self-powered fire-fighting blower system. The system can use the power battery of the electric vehicle as an energy source, which can ensure that it is not restricted by location and environment, can work for a long time, and greatly expands the scope of use of the fire-fighting blower. At the same time, using a drive motor as the motor of the fire-fighting blower can ensure that the fire-fighting blower has an ultra-high power output, which has a better effect when extinguishing a fire.

[0089] Example 4

[0090] Based on the above embodiment, this embodiment provides an optimization control method for a vehicle-mounted ultra-high power electric fire-fighting fan system. The control method is based on the control method of embodiment 3, and the following steps are added:

[0091] S6, in the electric fire-fighting fan mode, the new energy electric vehicle controller 9 monitors the temperature of the power battery 5 in real time;

[0092] S7, if it is detected that the temperature of the power battery 5 exceeds the preset threshold, the fire fan motor controller 4 is controlled to reduce the output power, and the cooling system of the power battery 5 is started at the same time;

[0093] S8, when the temperature of the power battery 5 drops to a safe range, the normal output power of the fire-fighting fan motor controller 4 is restored.

[0094] This optimization control method can effectively prevent the power battery 5 from overheating during high power output, protect the power battery 5, and extend its service life, while also ensuring long-term stable operation of the system.

[0095] Example 5

[0096] Based on embodiments 1, 2, 3 and 4, this embodiment describes in detail the application of the system on different vehicle models.

[0097] 1. Car application

[0098] For car applications, due to space limitations, the size of the fire fan motor 3 and the fan blades 32 need to be appropriately adjusted. The fire fan can be installed in the trunk of the car, and the trunk cover can be modified so that it can be opened in the fire fan mode to expose the fan blades 32. The motor fixing bracket 2 needs to be specially designed to ensure the stability of the fire fan system when the vehicle is driving.

[0099] 2. Wagon App

[0100] The fire-fighting fan system can be installed on the roof of a station wagon due to its large interior space. This design can maximize the size of the fan blades 32 and provide a larger wind output. The motor fixing bracket 2 can be designed to be foldable, stored when not in use, and unfolded when in use.

[0101] 3. Multi-Purpose Passenger Vehicle (MPV) Application

[0102] MPV models can consider installing the fire fan system on the side of the vehicle. By modifying the side sliding door, it can be opened when needed to expose the fan blades 32. This design does not affect the daily use of the vehicle and can quickly deploy the fire fan.

[0103] 4. Off-road passenger vehicle applications

[0104] For off-road vehicles, you can consider installing the fire fan system on the roof rack. This design can not only make full use of the space, but also increase the use height of the fire fan, which is conducive to its use in complex terrain.

[0105] 5. Pickup Application

[0106] Pickup trucks are one of the most ideal carriers. The fire fan system can be installed in the cargo box. By designing a liftable bracket, the fire fan can be raised when in use to obtain the best use effect. When not in use, the system can be completely stored in the cargo box without affecting daily use.

[0107] 6. Light truck application

[0108] Light trucks can be equipped with more powerful fire-fighting fan systems due to their larger carrying capacity. The system can be installed at the front of the cargo box, and its lifting and rotation can be controlled by the hydraulic system to achieve all-round air supply.

[0109] Through the above embodiments, the vehicle-mounted ultra-high power electric fire-fighting fan system of the present invention fully utilizes the advantages of new energy electric vehicles and realizes the functions of high-power and long-endurance fire-fighting fans. The system not only improves the efficiency of firefighting, but also increases the practicality of new energy vehicles, providing new technical support for firefighting work.

[0110] Those skilled in the art will readily appreciate that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, combinations, replacements, improvements, etc. made within the spirit and principles of the present invention are included within the protection scope of the present invention.

Claims

1. A vehicle-mounted ultra-high power electric fire-fighting fan system, It is characterized in that include: A new energy electric vehicle, comprising a vehicle body, a power battery, a drive motor controller and a drive motor; Power battery, used to power the entire system; A motor fixing bracket is mounted on the vehicle body; A fire-fighting fan motor is mounted on the motor fixing bracket; A fire-fighting fan motor controller, electrically connected to the fire-fighting fan motor; The fan blades are mounted on the motor shaft of the fire-fighting fan motor; an electronic transfer switch having a positive terminal, a first negative terminal, and a second negative terminal; Among them, the positive terminal of the power battery is electrically connected to the positive terminal of the electronic conversion switch, the first negative terminal of the electronic conversion switch is electrically connected to the positive terminal of the fire fan motor controller, and the negative terminal of the fire fan motor controller is electrically connected to the negative terminal of the power battery; the second negative terminal of the electronic conversion switch is electrically connected to the positive terminal of the drive motor controller, and the negative terminal of the drive motor controller is electrically connected to the negative terminal of the power battery.

2. The vehicle-mounted ultra-high power electric fire-fighting fan system according to claim 1, Features: The system also includes a vehicle controller, which is communicatively connected with the electronic conversion switch, the fire-fighting fan motor controller and the battery management system of the power battery.

3. The vehicle-mounted ultra-high power electric fire-fighting fan system according to claim 2, Features: The electronic switching switch can send its own conduction state information to the vehicle controller, and can receive and execute switch switching instructions from the vehicle controller.

4. The vehicle-mounted ultra-high power electric fire-fighting fan system according to claim 1, Features: The new energy vehicle is a vehicle that is supplemented with electric energy from the outside, uses a high-voltage power battery as an energy source, and is driven by a high-speed motor.

5. The vehicle-mounted ultra-high power electric fire-fighting fan system according to claim 1, Features: The fire-fighting fan motor controller matches the voltage range and output power range of the power battery.

6. A control method for a vehicle-mounted ultra-high power electric fire-fighting fan system as claimed in any one of claims 1 to 5, include: Receive mode switching instructions; According to the mode switching instruction, the electronic conversion switch is controlled to switch the conduction state to switch between the electric vehicle mode and the electric fire fighting fan mode; When switching to the electric fire-fighting fan mode, the electronic conversion switch is controlled to conduct the first negative terminal so that the power battery is electrically connected to the fire-fighting fan motor controller; When switching to the electric vehicle mode, the electronic conversion switch is controlled to turn on the second negative terminal, so that the power battery is electrically connected to the drive motor controller.

7. The control method according to claim 6, Features: In the electric fire fan mode, monitor the power battery status; When it is detected that the power battery power is lower than the preset threshold, a warning signal is issued.

8. The control method according to claim 6, Features: In the electric fire fan mode, the speed of the fire fan motor is controlled to adjust the output power of the fire fan.

9. The control method according to claim 6, Features: In electric vehicle mode, starting of the fire fan motor is prohibited.

10. The control method according to claim 6, Features: During the mode switching process, ensure that the power battery, drive motor controller and fire fan motor controller are not turned on at the same time to avoid accidents.

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